Error communicating with the remote browser. It may have die

Hi
I am intermittently getting "Error communicating with the remote browser. It may have died." while running tests in GRID (both firefox and chrome), example of firefox.. could anyone help to solve this please.. (the test has run only 1.42 mins)
Stack Trace
MESSAGE:
System.InvalidOperationException : Error communicating with the remote browser. It may have died.
Build info: version: '2.53.1', revision: 'a36b8b1', time: '2016-06-30 17:37:03'
System info: host: 'v-tst-uiwin7', ip: '10.0.250.13', os.name: 'Windows 7', os.arch: 'amd64', os.version: '6.1', java.version: '1.8.0_111'
Driver info: driver.version: RemoteWebDriver
Capabilities [{applicationCacheEnabled=true, rotatable=false, handlesAlerts=true, databaseEnabled=true, version=46.0.1, platform=WINDOWS, nativeEvents=false, acceptSslCerts=true, webStorageEnabled=true, locationContextEnabled=true, browserName=firefox, takesScreenshot=true, javascriptEnabled=true, cssSelectorsEnabled=true}]
Session ID: 04fae80d-e6f9-464b-b4b5-5228fbbed42e